Hi, this game shows some real promise! I really like that its a 3D shooter, and the graphics and graphics style is great! I also liked the space rocket built from the asset pack sprite and that you could pay to upgrade your skills.
There are a few areas that could do with a polish. Some music and sound would really help as sometimes I found it difficult to know if something had come up behind me and was attacking. I also noticed that the health bars did not update properly on some enemies, and knowing to click on the blocks rather than the sprites to buy upgrades wasn't initially obvious. Sometimes the UI was also difficult to see on the brighter levels as it was white on white.
A bit of polish and this game would be really great! Good job!