From M.U.G.E.N Wiki

Trigger Reference

Documentation for M.U.G.E.N version 1.0

About Triggers

This is an alphabetical index of function-type triggers. For details on use of function-type triggers in expressions, see the expression documentation. Unless otherwise specified, we will use P1 to represent the player who is evaluating the trigger, and P2 to represent his opponent (usually the closest opponent when in team mode).

Some triggers are nonstandard and cannot take expressions as their arguments. These are marked with a (*) in the index. Some triggers are deprecated; these are marked with a (**). Use of these triggers is not encouraged, as support for them may be removed in future versions of the engine.

Old-style triggers, marked (***), appear only in clauses of the form (trigger) (relational operator) (value).

Triggers used for math are marked with (math).

For all triggers, SFalse will be returned if the trigger is redirected to a nonexistent destination, or if the ID number for the redirection evaluates to SFalse. This is not listed in the error conditions for each trigger.