Tekken 4 Highly Compressed For Android Verified Fixed Site

Released in arcades in 2001 and on PS2 in 2002, Tekken 4 marked a radical shift for the series. Unlike its predecessor (Tekken Tag Tournament), Tekken 4 introduced:

on Android, you must use a PlayStation 2 emulator, as there is no official native port for this title. While "highly compressed" files are often searched for to save data, be cautious: many such files are unverified and may contain malware or corrupted data. 1. Recommended Emulator The most widely verified method for playing on Android is using the (or its successor, NetherSX2) emulator. AetherSX2/NetherSX2 tekken 4 highly compressed for android verified

But what does "verified" mean in this context? Why is compression necessary? And most importantly, how can you safely download and play this game without bricking your phone or downloading malware? Released in arcades in 2001 and on PS2