There is two types of levels in game: single-pass levels and double-pass levels.
1. Single pass: collect coins, move to exit. Avoid spikes, handle disappearing tiles.
2. Double pass: a) Time your actions, b) First pass – collect coins you can get, tap triggers (if any) for second pass, c) Second pass – collect remaining coins, while your shadow will repeat previously recorded actions. Move to exit.
What a weird game >.<