I completely forgot what anxiety was when I first played this game after a long while...

This is Mutant Mudds (Collection Edition) on the Nintendo Switch. I played this game and beat it when I was 9, back in the 3DS days... In fact, I think my first legit pixel drawing was the character from the game I drew all from scratch, just to see if I can replicate it... Well $15 on a bundle of 3 Mutant Mudds games... well spent. :)

It's a side-scrolling pixel platformer... It's actually on plenty of consoles.