I've seen this concept a few times in the jam, and this is definitely one of the better ones on execution. However,
- 120 Orbs is way way way too much, that's at least 30 minutes of doing the same thing
- While the level designs helps, not having a map really confuses the player on where they should be heading at times
- Some sound feedback would be nice
As for the feedback part:
- Aesthetic overhaul would be nice, needs some deep space bgm and sound effects to go with it, and the menu and UI should try and fit the game too
- No idea on story-wise
- Having more tasks would definitely helps with the game flow, but do try to lower the number of current task as I said above
Edit: Forgot to mention, you didn't set the WebGL build to be playable in browser