I liked the concept, but the gameplay was a bit frustrating.
It wasn't clear immediately that pressing buttons at the top would spawn an item in your hand (since you can't see it until you bring your mouse back to the screen).
The monkeys were pretty glitchy, there were times when a monkey got completely stuck on a ladder and wasn't able to climb up.
It also felt random whether or not I was allowed to place a puzzle element in any spot, especially the portal. There was one level where the monkey walked straight into a portal by pressing play, but I wasn't able to place the end portal down anywhere near the banana, or near a platform I could use to get the monkey up to the banana. I understand it breaks the game a bit if you can just place the exit portal wherever, but if that's such a big issue I just shouldn't be allowed to place portals at all tbh