The normal spider is the most common variation of Spider in the game Zombotron 2 (game) and Zombotron 2: Time Machine. It comes in two variations: Red and Yellow. They are identical in function and damage. The only difference is the color. They have a claw or spike that they use to attack at close range.
Automatic weapons and powerful handguns work best against Normal Spiders, similar to Poison Spiders. Attacking from long range is preferable, due to the fact that they cannot attack you if you are too far away.