Red Soul, White Noise

Frisk begins in a battle with Carnival in the Undertale Ruins. Use Undertale's FIGHT, ACT, ITEM, and MERCY commands and timed attack, while OFF's active-time pacing, weighted enemy moves, and damage rules shape each turn. Dodge attacks with the red SOUL, then cross a short Ruins passage for a Cob battle and the Source boss.

Solo, Windows PC. Requires both Steam PC versions of Undertale and OFF. Melty starts the app with the Undertale folder; because OFF is not in Melty catalog, the app finds it in Steam library folders and reads selected sprites from that copy at runtime. Neither game's files are included.

Credits: Undertale by Toby Fox; OFF by Mortis Ghost. This is an unofficial fan project and is not affiliated with or endorsed by them. Third-party software credits and licenses are included in the package. The mashup's original code and design are all rights reserved; remixes are not allowed. This does not claim rights to Undertale or OFF.