Triple sided

I will suggest you to interchange to place of Winblock and star as it is very easy to capture the winblock,also increase the gaping between the floors as it cause Low ceiling effect which is dangerous in zapper level

Spoiler

It's simply not possible to get two stars at once in this level, and there's a problem with your zapper placement.

@Neil Kuo @Dropouts even the low ceiling is also annoying!

Sorry guys

@Dropouts No need for 'sorry'! Enjoy building, listen to advice from other players, keep trying out new ideas, ! It's all fun and there's always more to learn.