In survival mode, the best thing you should get is unlimited jumps and extra health. The screen goes pretty fast to make a landing, and even if you do, you end up smacking into a boss, a wall, some random enemy, spikes, or slipping into a pit. Best main weapon... the rocket launcher. While you are flying away/button mashing the up arrow, the gun targets and kills the enemies, since the other guns need you to face the enemies, it's pretty hard not to smack into a wall.
You dont really need a recipe book. Just look at the color and shapes. Circles and hexagons are the loots. The squares can either be the loot/mod. When you combine three things of the same color, it'll turn out to be a mod. You'll figure out what color makes what mods after a bit of gameplay.
The scientist actually wanted to save his son. So, by placing the spewer/the blob, however you call it, into the Blood IV, the blob followed the IV all the way to the end of the thing and I'm gonna guess that the blob puked up blood into the son.