Hm I see!! I'll check either way, it should not happen.
Since it works well in celeste and not in my game, I should probably check on that. It could be a 3 keys limiter on the browser or something like this. It is worth checking.
About the control scheme yeah. I added WASD already but cannot update it yet. I'm also thinking of changing the dash button to z, q or even let people choose, when using the arrow keys. When using WASD, I put the dash button on K for now. I'll review the key bindings a bit more
Anyway, thank you for the feedback! I'll review the controls and make it a cool experience