My favourite game from the jam so far.

Graphics, music: 5/5

Nothing to say. It's superb. (ESPECIALLY for a jam game, where graphics are not as important for one-man teams)

Gameplay: 4/5

Movement stopping when charging the jump makes the controls a lot more frustrating and adds a certain "fake" difficulty to the game, arising from harder controls and not the game.

Other than that,  a little improvement could be the slight blinking of the cat when charging the jump, would make it clearer.

Other than that, slight blinking when charging jump would make it clearer that you're charging something up.