Use "Z" to use any action. (There is time between each usage of the action, which is about 15 seconds Use the left and right arrow keys to change action WASD to move your Blueben.
I made a version of Undertale or Deltarune's battles that allow you as my Second (actually decent) project, I hope you enjoy it. I might work on a better version one day with an actual boss, rather than the same attacks over and over. I hope you enjoy this! PS. The box gliding and the lightnings are random, so be careful with those. Thanks to my friends for the idea, and thanks to Toby Fox for making Undertale and Deltarune.