- Radiation - Use a Radioactive Costume on your pet.
	- Raffle - Buy 100 raffle tickets.
	- Rainbow - Attach a Rainbow Zax to your Rainbow pet.
	- Red - Feed your Red Addow a Red Gumball.
	- Refer - Refer 25 new members to Marapets.
	- Rubhd - Fight Rubhd 100 times in the Battle Arena.
	- Rusty - Fight Rusty 226 times in the Battle Arena.