Hi,
I played your game but it seems I have run into some bugs.
I have compiled a screenshot to illustrate the problems:
1) The ui seems all over the place. Maybe you have misplaced some of the ui anchors. Try to set the "game" view in unity to "free aspect" ratio and then resize the window. This is usually the quickest way to spot those problems.
2) After the tutorial "level 05" was unlocked for me but I was stuck there. I assume pressing "E" should reveal some info but I did not see anything (did pass right trough that other glowing cube.
3) As a rule of thumb, try to give your text some pace. A good ratio is 20% padding 60% text 20% padding (in the vertical). Give it a try, it will make your ui look much better :-) - If you want to learn more about this, here is a nice video (I am not affiliated with the creator. It's just the first that came to mind):
4) Your pause menu seems to overlap the tutorial keys. Looks a bit weird.
5) Your menu flow is a bit all over the place too. For example: if you go to options then leaving those drops you into the levels screen. That's unlogical. It is convention to put the player back where he/she came from. In this case "the main menu".
Thank you for sharing your first game.
I know it's though to hear such "found errors" feedback but "this is the way" to learn (if you forgive the Mandalorian pun here ^^).
