Good game! I liked the minimalist design, but it was VERY minimalist, without any art or sound effects. And as there is no description or tutorial, it took me a while to understand that I could double jump, I could grab the blocks (it's a really cool mechanic but I found the grab jump too low) and I should go up. It got to a part where the code wasn't well thought out and it was impossible to pass, causing me to lose and have to wait to get to the red platform. But the mechanics in general were very creative, with the blocks coming down and you trying to climb up!