Ooze Form II

Transmutation (Polymorph)
Level: Alchemist* 6, Magus * 6, Sorcerer */Wizard * 6
Components: V, S, M (a bit of the creature whose form you plan to assume)
Casting Time: 1 Standard Action
Range: personal
Target: you
Duration: 1 minute/level (D)
Saving Throw: -
Spell Resistance: -
  This spell functions as ooze form I except you can also assume the form of a Large ooze. You gain Blindsight 30 feet and immunity to critical hits and precision damage as well.
  Large Ooze: If you assume this form, you gain a +2 size bonus to your Strength score, a +8 size bonus to your Constitution score, a slam attack (2d4 plus 1d6 acid and Grab), and Constrict (2d4), and you take a -8 penalty to your Dexterity score.