New version available here:
AwesomeCats_CatsLanding_p3.zip
Few hints:
Grappling hook can be used on ground to help you gain speed.
You can toggle Grappling hook mode and Dive mode when in the air (you may gain speed by switching between them).
Slide can help you to get under some obstacles, but it also helps to unstuck.
Scan often and look around. If you miss a package it will be harder to find one again.
Intro can be skipped by pressing Space.
Respawn (Z) can be used not only for respawning when you stuck, but also for fast travel.