If you ACT> Check Froggit, you get this:
*FROGGIT- ATK 4 DEF 5
*Life is difficult for this enemy.

Also, Froggit is very easy to spare/kill, so if you find yourself needing this guide, you should return Undertale.

To spare Froggit, go to the ACT menu, navigate to compliment OR threat, press 'Z', and then Froggit will attack you. (More about attacks in the next section.)

To kill Froggit, go to the FIGHT menu, and try to press Z/Enter when the white bar gets in the center mark. You'll have to do this a different amount of times, depending on how close your white bar is to the center, and your weapon.

Attack 1. Five small flies enter the screen one after another from the top of the Bullet Board. They stop for a while and then move towards the protagonist's SOUL.

Attack 2. A small frog appears in the bottom right corner of the board and jumps with random force to the other side of the board.

Attack ?. There is a small chance that an attack similar to its fly attack plays, but with the bullets moving smoothly down the board and not targeting the SOUL.

You might have to come up with ways to dodge these patterns by yourself because honestly, I don't know. Whatever works for you!

Thank you for coming to my unnecessarily long talk, goodbye.
Happy Frogging!