Press the down arrow key to switch to Genocide Form; press the left arrow key to switch to Pacifist Form; press the up arrow key to switch to Shiny Pacifist Form; press the right arrow key to switch to Shiny Genocide Form. I HEAVILY RECOMMEND PUTTING YOUR CHARACTER'S MUSIC IN THE PROJECT. Music is a big part of Undertale if you ask me, so I may consider taking a few points off if you don't have it UNLESS your project was made and shared before this example came out. You don't have to make a Pacifist and Genocide form UNLESS YOU WANT TO AND UNLESS THERE'S A BIG DIFFERENCE IN YOUR CHARACTER IN BOTH ROUTES. Examples include Sans and Undyne, who practically become entirely different characters in the Genocide Route. IF YOU WANT TO MAKE A PACIFIST FORM AND GENOCIDE FORM, THE ABILITY NEEDS TO BE BUCKLE DOWN. Pacifist is a fusion between Duskull since Sans is a skeleton, Snorlax due to his laziness, and Dialga due to his knowledge of different timelines and dark blue+white coloration. Genocide is a fusion between Duskull, Snorlax, Dialga (all three for above reasons), and Gengar due to his power in the Genocide battle as well as it being a Pokemon many people think Sans would own (mostly due to the iconic grin).
Buckle Down: This Pokemon will switch to Genocide Form if 3 Pokemon in the party faint. Snoralskull's Genocide Form has very high Speed and Evasiveness, but very low HP. Observe: TYPE - Dark, CAT. - Status, PWR - --, ACC. - 100: The user takes two turns to observe its target's movements, learning what moves the target has and raising the user's Evasiveness in the process. Bad Pun: TYPE - Normal, CAT. - Status, PWR - --, ACC. - 100: The user tells a sigh-inducing pun, inducing a Taunt status and causing the opponent(s) to target it this turn. Psychokinesis: TYPE - Psychic, CAT. - Special, PWR - 60, ACC. - 100: The user raises its target in the air and flings it in a random direction. There is a 30% chance that the target will be flung in the direction of an ally, damaging both of them. Bonebardment: TYPE - Dark, CAT. - Attack, PWR - 120, ACC - 80: The user hits the target with multiple bones at one time, dealing heavy damage with no consequences.