All right.
Mario Tennis (gbc)
The GBC version of the popular N64 game. Same idea except it has an RPG mode. If you have the Game Boy transfer pack and Mario Tennis for N64, you can add your RPG character as a playable character in the N64 game. Instead of the slanted version of the court, it's flat. OVer all, it's good.
Super Mario Advance 2 (gba)
Super Mario World is back on the Game Boy Advance. With new added features. I think there is also a multiplyer mode. Over all, if you liked Super Mario World. You would want to get this.
I hope these helped you. You can also go to other game sites to see reviews. You can try GameFAQ's and Gamespot for the reivews.
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The Peagus Team must fulfill our duty. We must find the secert page.
The Game Master.