Really cute and pretty, good progression on the level design (up to where I managed to reach).
But the controls made me quit. Having to control the rover and the camera at the same time is a frustration point not fitting with the nice chill music. Especially when trapped in tight spaces. I found myself all the time expecting to control the wheels with the keys. Reversing is a brain twister.
Also, after finding the booster I realized the rover model front and back are very similar.
Both times I played I quit after finding the happy ball chilling.
Following in case you update, I'd like it to try again!