A rather nice, short game!
A few things that'd be nice:
For the first omega upgrade to also apply ticks, which would make it actually useful (One tick will generally at least double your production, and you'll be prestiging often enough that your points don't stay high for very long)
Hotkeys or other automation, especially later on!
Reordering the achievements so #2 is moved to #5, since it's one of the last ones you get
A timer in-game so you can see if you're on track for #6!