Evil Kyo can trap opponents against the corner of the screen. Utilize his heavy punch, cancel into the forward-quarter-circle punch, and repeat the timing as the opponent falls.
Makes every fighter in the roster (including hidden bosses and secret characters) immediately selectable on the character screen without needing to beat Arcade Mode or enter cheat codes. King Of Fighters Wing 1.9 All Characters Unlock
If you are pressing the buttons and the secret characters are not appearing, check for these common Flash emulation issues: Evil Kyo can trap opponents against the corner of the screen
If you're looking for more information or resources on King of Fighters Wing 1.9, here are some additional resources: cancel into the forward-quarter-circle punch