I do really like this game actually. There are just a few gripes that make it hard to play. First of all, it's not always apparent as to where you will end up when switching versions since there's no indicator for where things will disappear. There's also no indicator telling you where things will appear if you revert a version. This led me to reverting into a wall and dying quite often which was a little sad. To fix this, I recommend some new highlights. Orange already tells you where things will be in the next update. Why not have blue tell you where things will be in the previous update? Furthermore, if you overlap an existing object with orange or blue, it could convey to the player that in the upcoming, preceding version, that object will disappear. Finally, the movement feels slippery which takes away from the platforming aspect a bit. It makes the movement feel unresponsive and, while I'd understand if the floor was icy, it looks like this floor isn't meant to be slippery. This can be fixed by increasing the accelerate/decelerate speed, but if that's not what you're going for, that's cool too! The game is yours. Overall, I think the game has a great concept and has a lot of room to grow. I'm excited to what else you'll come up with.

Cool idea! not really "loop"y, but it works
i would have made the transition between versions faster, it feels a bit annoying to have to wait to switch between them