If editing data.txt feels too technical and the LF2.NET cheat is too fast to type, the community has created pre-patched .exe files.
Now go summon a battalion of LouisEX fighters and destroy the arena. Happy fighting little fighter 2 unlock all characters
If you want them permanently available without typing the code every time, you can edit the game's data files: If editing data
F6 + F7 + F8
Type this while the game is loading or at the selection screen. Be sure to use the standard full stop/period key, not the one on the number pad. participating in events
A: Yes, it is possible to unlock all characters without spending money by completing achievements, participating in events, and utilizing daily rewards.