Canular clavier (postjam version)

My keyboard isn't working correctly.
Help me get rid of most buttons, just keep two of them.
Use the mouse to play.

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This game was made for the Gdevelop Week-End Game Jam 3, this is a fixed and complete version.
Here is the Game Jam Version if you want to try it.

And if you like this kind of keyboard experience, here is a list of recommendations.

CREDITS :

Keyboard letters by Kenney - kenney.nl
Equipe Font by somepx
Bum.wav by Sancho82 -- License: Creative Commons 0
Animal Dog Bark 26.wav by abhisheky948 -- License: Creative Commons 0
Clap Sample by Birdland66 -- License: Creative Commons 0
Yodel by Astounded -- License: Creative Commons 0
Vintage Keyboard 2 by jim-ph -- License: Creative Commons 0
Can Tab Pluck 1 by tix99 -- License: Creative Commons 0
Flute_FMajScale_TwoOcts_UpDown.wav by larryv -- License: Creative Commons 0
Saxophone 1 - Tenor (unprocessed) by nowherestudios -- License: Creative Commons 0
Xylophone F3.wav by juancamiloorjuela -- License: Creative Commons 0
Moo 3 - Moo Moo the Cow by manofham -- License: Creative Commons 0