Very strong game, with a simple main mechanic which you make fantastic use of - changing between monkey modes on the go was a lot of fun, and when I was able to time it right and chain the switches together it felt great - this would be great to try and speedrun with a bit of practice.
I really quite liked the floaty feel to the characters, although this did make the precision platforming bits like the bounce pads very hard to get right. It works fantastically in other sections though, as you could build up a real sense of momentum and energy.
I love that you added accessibility options, it's a nice touch.
The music is fantastic, and reminds me of a few old flash games - brought back some great memories :)