Notes: this level gives a HUGE advantage to players on mobile devices (iOS, Android) and is very difficult on PC. This is due to having to shuffle between keyboard and mouse a lot.

PART 1, INTRO: This part is pretty straightforward. Start the level and head left. Press the button and head right. Jump over the bed and get attacked by Kara. However, if you're on PC, this gets MUCH, MUCH more difficult. When you start the level, you have a tiny window of time before the level actually starts. Move your cursor from the Level 24 button over to where the Level 23 button is for when you get attacked. Now quickly move your hands to your keyboard to play the level. When you get attacked by Kara, quickly press your mouse button (cursor should be located on the OKAY button.) Now you'll be in the boss fight.

PART 2, BOSS: Kara will rise up from the middle. Pressing the jump button will shoot a bullet into the air. As Kara is rising, fall under her and jump back onto the platform. The goal is to hit her head. Kara will ALWAYS go to the right side first, so follow her there while doing damage to her on the way. (DO NOT double jump! You will go up too high and die to her head.) Get to the far right side with the yellow box. Go to the left of the yellow box and start spamming jump. This will shoot lots of bullets and will take out Kara. Once you hear her blood curdling scream, jump on top of the yellow box and get to the "end" of the level. Here is a video of the fast kill if you need it:

PART 3, END: This is the easiest part of the level. Simply sit there in the cutscene and wait for the prompt to appear. Once the prompt appears, click it and you're done. The prompt's OKAY button will be diagonal and will appear in a certain spot. Spam click where it will appear to get it as fast as you can. Here is a diagram that shows exactly where the button appears: https://imgur.com/a/nxQ7Exe

And you're done! If there are any ways you think I should improve this guide, you can contact me through discord.