Asriel Instructions: 1 to shoot stars down from the sky where ever your mouse is, 2 makes lighting come down from the sky where ever your mouse arrow is, 3 to shoot bullets at your mouse arrow, 4 and 5 to make swords slash from either side of the box, 6 to shoot fireballs out of the mouse arrow, 9 to transform after 30 seconds, it will tell you when it's been that long, which then Asriel transforms all of his attacks and become more powerful, push U to go back from transformation. 8 to shoot a large laser (only can be used in the second form.) 7 during the second form to use Hyper Goner (can only be used once.) 0 to make spears come up from the bottom left and right corners. Frisk Instructions: Left, right, up, down and arrow keys to move. Z to interact with the spare button.
I changed the controls (which are meant for Numpad,) made it so that the giant laser goes to your cursor, made the battle last longer, changed the Hyper Goner, and added an extra spear attack.