arcade mode any glitches?

[Tank3r]

Is there other glitches in arcade mode? I only know 1 just finish all arcade stages but in the last just let the NPC die

[Takeshi2]

Wtf? How will the mother virus die on its own...

[LOLLEUTELOL]

Well if you stand up to a stone in the last level (just go left after spawn and take care that the virus is standing where the goalpoast is) .. it won't get you

[LastHope2010]

i can make a short vid about the trick at stage 8... i´ll set the link later!

[.seizure™]

[§3%•I§•β3§†]

I know one.
At stage 7.
Let Ksitch die when you have all other stages clear and it will be like won.