Notes, Blocks & A Snail

Play as a snail to find some mysterious music notes that magically toggle some colored blocks. Try to find the exit within this mysterious building.

Controls:

Left and right arrow keys to walk,
Up key to jump,
Z, X, C and V or A, S, Z and X to toggle the colored blocks (needs the respective upgrades),
Enter to see the options menu,
R to reset position.

In the options menu, you can change the controls to toggle the colored blocks.

There's also an ingame editor, I recommend you to check the "help" menu before starting to use it.

(Part of a long series by LibreTen, but not required to play this game.)