Hash match: 9f3k2d... confirmed. Certificate: VALID. Package: com.namco.ttt2.mobile.final.
This is currently the most viable method for many users. TTT2 was released on the Wii U, and early Android builds of the Cemu Emulator have shown playable performance. PS3 Emulation (RPCS3 for Android):
Leo sat up, disoriented. The phone was hot. On the screen, his own face stared back from the selfie camera, but overlaid on his reflection was a translucent, glowing HUD. Frame data. Input history. A small icon in the corner read: MISHIMA ZAIBATSU NETWORK – ACTIVE
Then the fight began.
The game was developed specifically for PlayStation 3, Xbox 360, Wii U, and arcades [1, 2]. Because of this, any "direct download" APK you find is likely a fake file, a reskinned version of an older mobile game (like Tekken 6), or potentially harmful malware [5].