with Boss Battles & Collectible Discoveries, Sweets!.
Reference: www.gameactuality.com/guide-g...
0:00 - Puzzle in room 206, School First floor
0:28 - Boss fight, School First floor
1:03 - Trick to activate switch button in the corridor, Auditorium
1:26 - Puzzle in the corridor, Auditorium
1:47 - Trick to find a cog in room A03, Arts center
1:53 - Puzzle to open the door in room A03, Arts center
2:12 - Puzzle to obtain the key, Gymnasium
2:45 - Puzzle to unlock all the cells, Gymnasium
3:32 - Boss fight - Phase 1, Gymnasium
4:11 - Boss fight - Phase 2, Gymnasium
4:28 - Boss fight - Phase 3, Gymnasium
5:01 - Ending, The Mine