These creations have been acclaimed as some of the best independent games available, though some commentators, including Cho himself, feel they are too simple for commercial release.

The developer's games have been ported from the original Windows versions to macOS and Linux, and various handheld devices.

In addition to Tumiki Fighters, acclaimed ABA Games titles include Gunroar, rRootage and Torus Trooper.

[8] Cho has also created BulletML, an open source program which can replicate bullet patterns from other shoot 'em up games.

[9] Macworld acclaimed Cho as "spectacularly talented" and "one of today’s best independent game programmers",[10] while GamesRadar noted him for "creating some of the best freeware shoot ‘em ups out there".

For example, Tumiki Fighters written in D and released in 2004, was included in the Linux distribution Debian[22] and also ported to Pandora handheld.