Too Many Points
It is possible to bypass the total point limit in the “Heavy” room, in the first area of Planet Bomber. Get every gem, kill all of the enemies, and get every power-up. You will bypass the point limit by 50 points.
by MelloProto (Source)
Hades Crater Door Bug
Unknown Causes: On level 32, Kanatia Star, Area 1 in Hades Crater, sometimes even after destroying all of the Garaden control towers (and getting 3000 points) the door won’t open to proceed on to the next area. You will need to quit the level and try again.
by Alex Gam (Source)