The first Magnus defeat in Normal Mode

Most point and clicks don't have potion cooldowns, and thus, have the exact same "godmode" as long as you have the HP to take the hit as Maple Story.

Name some. Every PnC MMO I've played does not let you spam the potion hotkey. Usually has a 10-30 second CD for the HoT potions. The insta heal pots have like a 60sec CD.