I like the concept, could use a bit of improvement on the art but thats just personally me
The game play, like the concept, is utterly simply, however there is one thing i'd like to point it, there doesn't seem to really be a pattern with the monkeys in terms of its speed, its travel path-yes, is straight forwards (Sometimes literally)
However the speed seems to completely be in RNG status, completely random and not entirely determinable
In the late part of the stages I could completely roll with this kind of difficulty curve, however in the immediate stages it seems a bit redundant
Other than that it seems alright for what it is