I want to further develop this game I created for a game jam. Currently spiders chase squirrels with the same speed. Tree branches are randomly generated. Even if you perfectly time your jumps the spiders will eventually catch you. Squirrels are able to pick up randomly generated acorns to throw at the spiders knocking them back.
I want to implement some kind of difficulty progression. Any ideas are appreciated. My main idea is to accelerate the spiders, but the squirrels can't jump any quicker because of physics. They are propelled by one of two jump strengths, and gravity.
The question is: Would it be a good idea to increase the jump high and/or gravity accordingly to the speed of the spiders? (allowing the player to continue to evade the spiders)
Please take into consideration that other obstacles will be added; for example a bat attacking the squirrel from a hole in the tree trunk.