I like the aesthetics of this game - it reminds me of Donkey Kong and Pacman.
The dimension switching aspect was interesting especially when combined with the point scoring and time-extension mechanics. It was useful that the dimensions' layouts were consistent, as I would try to plan where enemies would end up going and what platforms would appear. However, having five potential colours right off the bat is somewhat overwhelming, as there would be fewer chances at the game's start to get matching colour switches and enemies on top of having to learn the layouts. Having fewer colours initially and than gradually ramping up the amount of colours as time goes on would benefit new players as they learn the layouts, and have more opportunities to gain points.
However, the horizontal movement felt too fast. There was also a tendency for the horizontal movement to not work, especially after switching. The combination of this and the fast horizontal speed makes it frustrating to move around, as the controls felt inconsistent. The jumping controls felt ok.
Overall, I like the aesthetic and how the game mechanics mesh together well.
A colourful and hectic arcade game with twitchy controls.