Digimon Rumble Arena 2

Digimon Rumble Arena 2 lets you play as and against your favorite Digimon characters. The game features all the popular Digimon from all four seasons of the TV show, plus secret Digimon. Each Digimon has a signature move that can earn Digipoints and, with enough Digipoints, you can Digivolve and destroy your opponents. In locations ranging from icy glaciers to fields of fire, you can conquer the Digimon in single-player mode or compete against three of your friends in multiplayer brawls.

Widescreen AR Codes
To play properly in 16:9 and avoid Object pop-in at the edges of the screen during gameplay, before booting the game, use the following AR code.
 * Note: Start Dolphin with these settings - Disable Widescreen Hack in Graphics/Enhancements and set Aspect Ratio to Stretch to Window in Graphics/General.

PAL
16:9 Aspect Ratio (Widescreen) [Ralf] GBP3-GE58-MQXB8 Y6HC-D3T2-YWCDU JAG2-J705-AXT1U T2GU-V5CY-8XJ1M P9KY-CANM-5JX0N VJP2-CKDG-6G04N 5TX9-14G7-BKRWF Q798-66HG-60XPM ZXAP-T176-3EW64

60Hz AR Codes
Grabbed from here.. 

PAL
Enable 60Hz Mode [Ralf] WQ3E-BV1E-QY6EJ HBUF-ZN5G-A178Q 444J-EH1M-8EJH7