If you want a legal, official Ultraman game without emulation, check out:

Absolutely. After testing the process on a Google Pixel 7 and a Samsung Galaxy Tab S8, the game runs near-flawlessly. The nostalgia of transforming into Glitter Tiga or performing Dyna’s Revolium Punch on a modern OLED screen is unmatched.

Another popular alternative for running high-end PlayStation 2 titles on mobile.

Developed by Banpresto, Ultraman Fighting Evolution 3 was released in late 2004. It wasn't just another fighting game; it was a love letter to the franchise. Unlike its predecessors, this installment introduced "Scenario Mode," a mode that faithfully recreated famous episodes from various Ultraman series, from the original Ultraman to Ultraman Gaia .