You can use the front touchscreen or rear touchpad to trigger "Battle Taps"—customizable shortcuts for throws or complex combos. Cross-Play & Save: You can battle against
If you are looking for the "true" portable experience, you should consider the official PS Vita version: street fighter x tekken psp iso
Support the developers where possible. The game is still available second-hand on UMD and often on sale via PSN (playable on PS Vita). But for preservation and performance on modern hardware, the ISO remains the gold standard. You can use the front touchscreen or rear