WL3 AMB: The Peaceful Village Red Chest 

This is a in-development Wario Land 3 romhack (titled Wario Land 3: Another Music Box) that aims to give every single level in the game a new layout with higher difficulty, along with more usage of lesser-used mechanics and reactions in the original game.
This is The Peaceful Village's Red Chest. Fun fact about Spring Wario, the final bounce isn't random, rather it's based on the last left/right button press.
If left was pressed before the final bounce Wario will bounce left and vice versa.