- Germans Love David Hasselhoff: Upon release, Monsterpocalypse became very popular very fast in Japan. Considering the subject matter, it's hardly surprising.
- Tier-Induced Scrappy:
- In the early days of the game, Mega Zor-Maxim was considered by many to be so overpowered that it led to the popularity of games using "No Mega" house rules. It's evened out a little since then, but he's still one of the most powerful monsters in the game.
- On the other end of the scale, Mega Zorog has developed something of a reputation for uselessness.