What is the weakest part of the game?

i can't jump over the first gap, and i'm not sure what's going on

What are the best parts of the game?

your character looks cool

You have to use the portal mechanic which is the main aspect of the game. You can use left and right click to place these portals wherever you want within the level.

There is controls listed in the menu but I understand that it may be hard to find in its unfinished state.