Great Challenge is a type of Special Stage, appearing only during events. These stages feature Pokémon that are usually not available anywhere else. They are usually pretty difficult with low catchability.
The first several events had rewards for first clear, and then the game was released for Mobile. Since then, events have been somewhat inconsistent between the two platforms, including Mobile costing Coins for attempting the stages, up until the the 3DS v1.3.10 (05/17/2016) and Mobile v1.6.4 (05/17/2016) updates, when Skill Boosters were introduced. After that, events and stage attempt costs have been the same on both platforms, and repeated stages usually drop Skill Boosters.
Phase 3:
| Pokémon | Event Duration | Drops | Notes |
|---|---|---|---|
 Mareanie
|
01/16/18 to 01/29/18 | ||
 Palossand
|
01/16/18 to 01/22/18 |  25% / 12.5% / 6.25%
|
Costs 300  per attempt
|
 Lycanroc
|
01/16/18 to 01/22/18 | 25% / 12.5% / 6.25%
|
|
 Minior
|
01/09/18 to 01/22/18 | ||
 Zekrom
|
01/09/18 to 01/15/18 | 25% / 25% / 12.5%
|
|
 Palkia
|
01/09/18 to 01/15/18 | 25% / 25% / 12.5%
|
Costs 300 per attempt
|
 Dialga
|
01/09/18 to 01/15/18 | 50% / 25% / 25%
|
Costs 2  per attempt
|
 Ninetales (Alola Form)
|
01/02/18 to 01/08/18 | 50% / 25% / 25%
|
Costs 2 per attempt
|
 Reshiram
|
01/02/18 to 01/08/18 | 25% / 25% / 12.5%
|
|
 Kyogre
|
01/02/18 to 01/08/18 | 25% / 25% / 12.5%
|
Costs 300 per attempt
|
 Granbull (Winking)
|
12/26/17 to 01/08/18 | ||
 Hitmonlee
|
12/26/17 to 01/01/18 | 25% / 25% / 12.5%
|
Costs 300 per attempt
|
 Landorus (Therian)
|
12/19/17 to 12/25/17 | 25% / 25% / 12.5%
|
|
 Groudon
|
12/19/17 to 12/25/17 | 50% / 25% / 25%
|
Costs 2 per attempt
|
 Chespin (Winking)
|
12/12/17 to 12/18/17 | ||
 Toxapex
|
12/05/17 to 12/18/17 | Costs 300 per attempt
| |
 Fennekin (Winking)
|
12/05/17 to 12/11/17 | ||
 Ribombee
|
11/28/17 to 12/11/17 | Costs 300 per attempt
| |
 Mudsdale
|
11/28/17 to 12/11/17 | 50% / 25% / 12.5%
|
Costs 300 per attempt
|
 Froakie (Winking)
|
11/28/17 to 12/04/17 | ||
 Araquanid
|
11/21/17 to 11/27/17 | 25% / 12.5% / 6.25%
|
|
 Popplio
|
11/21/17 to 11/27/17 | 25% / 12.5% / 6.25%
|
|
 Sandslash (Alola Form)
|
11/21/17 to 11/27/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
 Rowlet
|
11/14/17 to 11/20/17 | 25% / 12.5% / 6.25%
|
|
 Audino (Winking)
|
11/10/17 to 11/11/17 | 50% / 25% / 12.5%
|
Mobile only |
| Palossand
|
10/31/17 to 11/13/17 | ||
 Litten
|
10/31/17 to 11/06/17 | 25% / 12.5% / 6.25%
|
|
 Mimikyu
|
10/24/17 to 11/06/17 | 25% / 12.5% / 6.25%
|
|
 Dhelmise
|
10/24/17 to 11/06/17 | ||
 Marowak (Alola Form)
|
10/17/17 to 10/30/17 | ||
 Sableye (Spooky)
|
10/17/17 to 10/30/17 | 25% / 12.5% / 6.25%
|
|
 Pikachu (Shiny Gyarados Costume)
|
10/17/17 to 10/23/17 | 25% / 12.5% / 6.25%
|
|
 Kingdra
|
10/17/17 to 10/23/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
 Bellossom
|
10/17/17 to 10/23/17 | 25% / 25% / 12.5%
|
|
 Ho-Oh
|
10/17/17 to 10/23/17 | 50% / 25% / 12.5%
|
Costs 2 per attempt
|
 Camerupt
|
10/10/17 to 10/16/17 | 25% / 12.5% / 6.25%
|
|
 Politoed
|
10/10/17 to 10/16/17 | 25% / 25% / 12.5%
|
Costs 300 per attempt
|
 Feraligatr
|
10/03/17 to 10/16/17 | 25% / 12.5% / 6.25%
|
|
 Totodile (Winking)
|
10/03/17 to 10/09/17 | 50% / 50% / 12.5%
|
|
 Zygarde (10%)
|
10/03/17 to 10/09/17 | 25% / 12.5% / 6.25%
|
|
 Hitmontop
|
09/26/17 to 10/09/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
 Cyndaquil (Winking)
|
09/26/17 to 10/02/17 | 50% / 50% / 12.5%
|
|
 Meganium
|
09/19/17 to 10/02/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
 Typhlosion
|
09/19/17 to 10/02/17 | 25% / 12.5% / 6.25%
|
|
 Chikorita (Winking)
|
09/19/17 to 09/25/17 | 50% / 50% / 12.5%
|
|
 Turtonator
|
09/12/17 to 09/25/17 | ||
 Slaking
|
09/12/17 to 09/18/17 | 50% / 50% / 12.5%
|
|
 Type: Null
|
09/05/17 to 09/18/17 | ||
 Machamp
|
09/05/17 to 09/11/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
| Reshiram
|
09/05/17 to 09/11/17 | 25% / 12.5% / 12.5%
|
Costs 400 per attempt
|
 Toucannon
|
08/22/17 to 09/04/17 | ||
| Zekrom
|
08/22/17 to 08/28/17 | 50% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Uxie
|
08/15/17 to 08/21/17 | 50% / 25% / 12.5%
|
Costs 400 per attempt
|
| Dialga
|
08/08/17 to 08/14/17 | 50% / 12.5% / 6.25%
|
|
| Palkia
|
08/08/17 to 08/14/17 | 50% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Regice
|
08/01/17 to 08/14/17 | 50% / 12.5% / 6.25%
|
|
 Hitmonchan
|
07/25/17 to 08/08/17 | 25% / 12.5% / 6.25%
|
|
| Hitmonlee
|
07/18/17 to 07/31/17 | 25% / 12.5% / 6.25%
|
|
| Ho-Oh
|
07/18/17 to 07/31/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Registeel
|
07/11/17 to 07/24/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Pikachu (Alola Cap)
|
07/11/17 to 07/17/17 | ||
 Cresselia
|
07/04/17 to 07/17/17 | 25% / 12.5% / 6.25%
|
|
 Regirock
|
07/04/17 to 07/17/17 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
 Pikachu (Unova Cap)
|
06/27/17 to 07/03/17 | ||
| Pikachu (Shiny Gyarados Costume)
|
06/20/17 to 07/03/17 | ||
 Gyarados
|
06/20/17 to 07/03/17 | 50% / 25% / 12.5%
|
|
 Pikachu (Hoenn Cap)
|
06/13/17 to 06/19/17 | ||
| Landorus (Therian)
|
06/13/17 to 06/26/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Lurantis
|
06/06/17 to 06/19/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
 Exeggutor (Alola Form)
|
06/06/17 to 06/19/17 | ||
 Muk (Alola Form)
|
06/06/17 to 06/19/17 | ||
| Mudsdale
|
05/23/17 to 06/05/16 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
| Rowlet
|
05/23/17 to 06/05/16 | ||
| Araquanid
|
05/16/17 to 05/29/16 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
| Lycanroc
|
05/16/17 to 05/29/16 | ||
| Sandslash (Alola Form)
|
05/09/17 to 05/22/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
| Popplio
|
05/09/17 to 05/22/17 | ||
| Ninetales (Alola Form)
|
05/02/17 to 05/15/17 | 25% / 12.5% / 6.25%
|
Costs 300 per attempt
|
| Mimikyu
|
04/25/17 to 05/08/17 | 12.5% / 12.5% /  1.5625%
|
Costs 300 per attempt
|
| Litten
|
04/25/17 to 05/08/17 | ||
| Zekrom
|
04/04/17 to 04/18/17 | 25% / 12.5% / 12.5%
|
Costs 2 per attempt
|
 Escavalier
|
03/28/17 to 04/03/17 | ||
 Accelgor
|
03/28/17 to 04/03/17 | ||
| Reshiram
|
03/21/17 to 04/03/17 | 25% / 12.5% / 12.5%
|
Costs 2 per attempt
|
| Dialga
|
03/14/17 to 03/27/17 | 25% / 12.5% / 12.5%
|
Costs 2 per attempt
|
 Amoongus
|
03/07/17 to 03/20/17 | Costs 300 per attempt
| |
| Palkia
|
03/07/17 to 03/20/17 | 25% / 12.5% / 12.5%
|
Costs 2 per attempt
|
| Uxie
|
02/28/17 to 03/13/17 | 25% / 12.5% / 6.25%
|
|
| Cresselia
|
02/28/17 to 03/13/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Armaldo
|
02/21/17 to 02/27/17 | ||
 Cradily
|
02/21/17 to 02/27/17 | ||
 Shaymin (Land)
|
02/07/17 to 02/20/17 | 25% / 12.5% / 6.25%
|
|
 Wigglytuff (Winking)
|
02/07/17 to 02/13/17 | ||
 Togekiss (Winking)
|
02/07/17 to 02/13/17 | ||
| Bellossom
|
01/31/17 to 02/06/17 | 25% / 12.5% / 12.5%
|
|
 Wailord
|
01/24/17 to 02/06/17 | ||
| Gyarados
|
01/24/17 to 02/06/17 | 50% / 25% / 12.5%
|
|
| Groudon
|
01/24/17 to 02/06/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
| Kyogre
|
01/24/17 to 02/06/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
| Totodile (Winking)
|
01/24/17 to 01/30/17 | ||
| Politoed
|
01/17/17 to 01/30/17 | Costs 300 per attempt
| |
| Chikorita (Winking)
|
01/17/17 to 01/30/17 | ||
| Cyndaquil (Winking)
|
01/10/17 to 01/23/17 | ||
| Feraligatr
|
01/10/17 to 01/23/17 | 25% / 12.5% / 6.25%
|
|
| Kingdra
|
01/10/17 to 01/23/17 | 25% / 12.5% / 6.25%
|
|
| Ho-Oh
|
01/10/17 to 01/23/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Hoopa (Confined)
|
12/20/16 to 01/02/17 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
| Reshiram
|
12/13/16 to 12/26/16 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Emboar
|
12/06/16 to 12/19/16 | 25% / 12.5% / 6.25%
|
|
 Infernape
|
12/06/16 to 12/19/16 | 25% / 12.5% / 6.25%
|
|
| Typhlosion
|
11/29/16 to 12/12/16 | 25% / 12.5% / 6.25%
|
|
| Zekrom
|
11/29/16 to 12/12/16 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Archeops
|
11/29/16 to 12/12/16 | ||
 Breloom
|
11/22/16 to 12/05/16 | Costs 300 per attempt
| |
 Keldeo (Ordinary)
|
11/22/16 to 12/05/16 | 25% / 12.5% / 6.25%
|
|
 Carracosta
|
11/15/16 to 11/28/16 | Costs 300 per attempt
| |
 Medicham
|
11/08/16 to 11/14/16 | 50% / 12.5% / 1.5625%
|
Costs 300 per attempt
|
 Manaphy
|
11/01/16 to 11/14/16 | 25% / 12.5% / 12.5%
|
3DS only (Mobile is Commemorative Event)
|
| Hitmontop
|
11/01/16 to 11/14/16 | Costs 300 per attempt
| |
| Machamp
|
11/01/16 to 11/14/16 | 25% / 12.5% / 6.25%
|
|
 Dusknoir
|
10/25/16 to 10/31/16 | 50% / 12.5% / 1.5625%
|
|
| Sableye (Spooky)
|
10/18/16 to 10/31/16 | Costs 300 per attempt
| |
| Hoopa (Confined)
|
10/18/16 to 10/31/16 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
| Regirock
|
10/11/16 to 10/24/16 | 25% / 12.5% / 6.25%
|
|
 Electivire
|
10/11/16 to 10/17/16 | 50% / 12.5% / 1.5625%
|
|
| Togekiss (Winking)
|
10/04/16 to 10/17/16 | Costs 300 per attempt
| |
| Feraligatr
|
10/04/16 to 10/17/16 | Costs 300 per attempt
| |
| Palkia
|
10/04/16 to 10/17/16 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
| Bellossom
|
10/04/16 to 10/10/16 | 25% / 12.5% / 6.25%
|
|
| Slaking
|
09/27/16 to 10/10/16 | Costs 300 per attempt
| |
| Dialga
|
09/20/16 to 10/03/16 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
 Golem
|
09/13/16 to 09/26/16 | Costs 300 per attempt
| |
| Dusknoir
|
09/06/16 to 09/19/16 | 25% / 25% / 6.25%
|
|
| Hitmonchan
|
09/06/16 to 09/19/16 | Costs 300 per attempt
| |
 Pikachu (Happy)
|
09/06/16 to 09/19/16 | 3DS only (Mobile is Commemorative Event)
| |
| Regice
|
08/30/16 to 09/12/16 | 25% / 6.25% / 6.25%
|
|
| Shaymin (Land)
|
08/23/16 to 09/05/16 | 25% / 12.5% / 6.25%
|
3DS only (Mobile is Commemorative Event)
|
| Zekrom
|
08/23/16 to 09/05/16 | 25% / 6.25% / 6.25%
|
Costs 400 per attempt
|
| Typhlosion
|
08/16/16 to 08/29/16 | ||
| Meganium
|
08/09/16 to 08/22/16 | Costs 300 per attempt
| |
| Kyogre
|
08/09/16 to 08/22/16 | 25% / 3.125% / 1.5625%
|
Costs 400 per attempt
|
 Mew
|
08/09/16 to 08/22/16 | 50% / 25% / 6.25%
|
Mobile only (3DS is Commemorative Event)
|
| Reshiram
|
08/02/16 to 08/15/16 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
| Zygarde (10%)
|
07/26/16 to 08/08/16 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
 Rhyperior
|
07/19/16 to 08/01/16 | Costs 300 per attempt
| |
| Palkia
|
07/19/16 to 08/01/16 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
| Bellossom
|
07/19/16 to 07/25/16 | 25% / 6.25% / 3.125%
|
|
| Landorus (Therian)
|
07/19/16 to 07/25/16 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
| Hoopa (Confined)
|
07/12/16 to 07/25/16 | Costs 400 per attempt
| |
| Regirock
|
07/05/16 to 07/18/16 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
| Regice
|
07/05/16 to 07/18/16 | Costs 400 per attempt
| |
| Registeel
|
07/05/16 to 07/18/16 | Costs 400 per attempt
| |
 Celebi
|
07/05/16 to 07/18/16 | 50% / 25% / 6.25%
|
3DS only (Mobile is Commemorative Event)
|
| Hitmonlee
|
06/28/16 to 07/11/16 | Costs 300 per attempt
| |
| Ho-Oh
|
06/28/16 to 07/11/16 | 25% / 6.25 / 3.125%
|
Costs 400 per attempt
|
| Landorus (Therian)
|
06/21/16 to 07/04/16 | 25% / 12.5% / 6.25%
|
Costs 400 per attempt
|
| Gyarados
|
06/21/16 to 07/04/16 | 25% / 12.5% / 12.5%
|
Costs 300 per attempt
|
 Omastar
|
06/14/16 to 06/27/16 | 25% / 6.25% / 6.25%
|
Costs 300 per attempt
|
| Dialga
|
06/14/16 to 06/27/16 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
| Kingdra
|
06/07/16 to 06/20/16 | Costs 300 per attempt
| |
| Uxie
|
06/07/16 to 06/20/16 | 50% / 25% / 6.25%
|
Costs 400 per attempt
|
| Infernape
|
05/31/16 to 06/13/16 | 25% / 6.25% / 3.125%
|
Costs 300 per attempt
|
| Keldeo (Ordinary)
|
05/31/16 to 06/13/16 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
 Magmortar
|
05/24/16 to 06/06/16 | Costs 300 per attempt
| |
| Kyogre
|
05/24/16 to 06/06/16 | 25% / 3.125% / 1.5625%
|
Costs 400 per attempt
|
| Groudon
|
05/17/16 to 05/30/16 | 25% / 6.25% / 3.125%
|
Costs 400 per attempt
|
| Electivire
|
05/17/16 to 05/30/16 | Costs 300 per attempt
|
Phase 2:
| Pokémon | Event Duration | Notes |
|---|---|---|
| Bellossom
|
05/10/16 to 05/16/16 | Mobile costs 300 per attempt
|
| Mew
|
04/26/16 to 05/09/16 | |
| Dusknoir
|
04/26/16 to 05/09/16 | Mobile costs 300 per attempt
|
| Infernape
|
04/19/16 to 05/02/16 | Mobile costs 300 per attempt
|
| Keldeo (Ordinary)
|
04/19/16 to 05/02/16 | Mobile costs 400 per attempt
|
| Manaphy
|
04/12/16 to 04/25/16 | 3DS only |
| Landorus (Therian)
|
04/12/16 to 04/25/16 | Mobile costs 400 per attempt
|
| Groudon
|
04/05/16 to 04/18/16 | Mobile costs 400 per attempt
|
| Zygarde (10%)
|
03/29/16 to 04/11/16 | Mobile costs 400 per attempt
|
| Kyogre
|
03/29/16 to 04/11/16 | Mobile costs 400 per attempt
|
| Ho-Oh
|
03/22/16 to 04/04/16 | 3DS starts 03/29/16
Mobile costs 400 |
| Uxie
|
03/22/16 to 04/04/16 | Mobile costs 400 per attempt
|
| Omastar
|
03/08/16 to 03/21/16 | Mobile costs 300 per attempt
|
| Machamp
|
03/01/16 to 03/07/16 | Mobile ends 03/14/16 |
| Gyarados
|
02/23/16 to 03/07/16 | Mobile costs 300 per attempt
|
| Reshiram
|
02/02/16 to 02/15/16 | Mobile costs 400 per attempt
|
| Zekrom
|
01/19/16 to 02/01/16 | Mobile costs 400 per attempt
|
| Infernape
|
01/12/16 to 01/25/16 | Mobile costs 300 per attempt
|
| Dusknoir
|
01/12/16 to 01/18/16 | Mobile ends 01/25/16
Mobile costs 300 |
| Regice
|
12/22/15 to 12/27/15 | Mobile costs 600 per attempt
|
| Registeel
|
12/18/15 to 12/21/15 | Mobile costs 600 per attempt
|
| Regirock
|
12/15/15 to 12/17/15 | Mobile costs 600 per attempt
|
| Palkia
|
12/08/15 to 12/14/15 | Mobile ends 12/21/15
Mobile costs 2 |
| Dialga
|
12/08/15 to 12/14/15 | Mobile ends 12/21/15
Mobile costs 600 |
| Machamp
|
11/24/15 to 12/07/15 | |
| Keldeo (Ordinary)
|
11/24/15 to 12/07/15 | Mobile only
Costs 600 |
 Rayquaza
|
11/13/15 to 11/26/15 | |
| Groudon
|
11/06/15 to 11/19/15 | Mobile only |
| Kyogre
|
11/02/15 to 11/15/15 | Mobile only |
| Ho-Oh
|
10/26/15 to 11/08/15 | |
| Regirock
|
10/19/15 to 11/01/15 | Mobile only |
| Dusknoir
|
10/12/15 to 10/25/15 | |
| Palkia
|
10/05/15 to 10/18/15 | |
| Dialga
|
10/05/15 to 10/18/15 | |
| Keldeo (Ordinary)
|
09/28/15 to 10/04/15 | |
| Regice
|
09/23/15 to 09/26/15 | 3DS only |
| Registeel
|
09/19/15 to 09/22/15 | 3DS only |
| Rayquaza
|
09/18/15 to 10/01/15 | Mobile only |
| Regirock
|
09/14/15 to 09/18/15 | 3DS only |
| Groudon
|
09/11/15 to 09/24/15 | Mobile only
Costs 2 Hearts per attempt |
| Kyogre
|
09/04/15 to 09/17/15 | Mobile only
Costs 2 |
Phase 1:
| Pokémon | Event Duration | Rewards |
|---|---|---|
| Rayquaza
|
08/28/15 to 09/03/15 | 500
|
| Groudon
|
08/21/15 to 08/27/15 | 500
|
| Kyogre
|
08/14/15 to 08/20/15 | 500
|
| Rayquaza
|
08/07/15 to 08/13/15 | 500
|
| Groudon
|
07/31/15 to 08/06/15 | 500
|
| Kyogre
|
07/24/15 to 07/30/15 | 500
|
| Dialga
|
06/08/15 to 06/21/15 | 1000
|
| Regirock
|
05/11/15 to 05/24/15 | 1000
|
| Groudon
|
04/13/15 to 04/26/15 | 3000
|
| Rayquaza
|
03/30/15 to 04/19/15 | 1 
|
| Keldeo (Ordinary)
|
03/23/15 to 04/05/15 | 5000
|
| Kyogre
|
03/09/15 to 03/22/15 | 1
|