BEE2 is a program that allows you to customize the Portal 2 Puzzlemaker/Perpetual Testing Initiative. and the levels made with it by adding new styles, voicelines, puzzle elements and etc.
BEE2 went into beta on the 27th of May, 2015 and was officially released on the 9th of December, 2018 dubbed as BEE2 4.32.0.
With BEE2 you can modify the standard PETI (and it's levels) in several ways, including but not limited to.
- Add new items to the PETI palette.
- Choose the video that plays at the start and end of the level.
- Choose the voicelines, more specifically, choose what character's voicelines will play during the test.
- Choose the style (Overgrown, Clean, P1 style, etc.)
- Choose the skybox.
- Choose the music.
And so on and so forth.
You can download BEE2 from the github release page. https://github.com/BEEmod/BEE2.4/releases