Update - Reflect, Hope, Ollie, Reine, Mercy!

- New Level: Here Comes Hope by IRyS

- New Level: Reflect by Gawr Gura

- Two new characters: Ollie and Reine

- Mercy objects: Die a lot of times on a level, and an extra checkpoint or platform may appear to make a tough part a little less punishing

- Progression: Levels will appear after beating the previous one, instead of just having all level unlocked

- Various changes to level layouts to (hopefully) make the game more fun and less frustrating without making it too much easier