How about a chao garden?

The first egg is free when you fill out a form like this:


Name: (your chao's name)
Class: (helper(helps with quests, fighting, and the like) Fighter(competes in chao karate)or racer(competes in races))
Color: (First one will be regular, but you can buy different colored eggs at the chao store)
Alignment: (hero, neutral or dark)
Power:(starts at 0 but is boosted by 1 every time you feed it a red drive bought at the chao store, tells how much damage is done in karate or fighting, if power is at least lv 25, and chao is a helper, it can give the temporary ability to smash objects as if in power formation in sonic riders, allows chao to climb rocks quickly in chao races)
Speed: (green drives, tells the chance of striking first in karate, if speed is at least lv 25, it gives you the power to temporarily grind rails in sonic riders if it's a helper, pretty much self explanitory in chao races)
Swim:(yellow drives, tells defense in chao karate, if swim is at least lv 25, it lets you get across watery terrain when taking a quest if it's a helper, allows chao to swim quickly in races)
Fly: (purple drives, tells stealth in chao karate, if fly is at least lv 25, it allows you to go through rings temporarily in sonic riders if it's a helper, allows it to fly over gorges and chasms in chao races)
Stamina: (fruit, health in karate, how many times you can temporarily boost speed in races)

Example: My Chao


Name: Ajax, the Dark one
Class: helper
Color: Normal
Alignment: Dark
Power: 0
Speed: 0
Swim: 0
Fly: 0
Stamina: 0

Another good idea! If Sonic was here he'd add a place for it! 500 rings bud!

Once again, YAY!