Travelling across the galaxy through a bunch of different little minigames is a nice idea, and it's quite impressive how many different ones you managed to put in there for a jam!
Overall everything works, and the simple gameplay is fine. Every minigame feels like another stop on the way home, but it also does not feel "nescessary", so I kinda miss the motivation for those games.
What I'd really change are the controls: Z and X aren't great keys for a (standard) PC game imo, WASD or the arrow keys plus Space, or just mouse input, would feel a lot more natural and make it easier to jump right in.
Visually, the design, the graphics and the colors don't really fit together yet, it feels a bit like pieces from different games. Picking one style and a small color palette for all minigames would already make it feel much more like one adventure.
The music works and fits the arcade vibe, but a bit more variation would be nice, so each stop gets its own little flavour :) The base is there, it just needs some more polish, keep it up :)