You have resistance to force since you are made of a gelatinous substance. You wiggle though.

Ooze Cube. The cube takes up its entire space. Other creatures can enter the space, but a creature that does so is subjected to the cube's Engulf and has disadvantage on the saving throw.

Creatures inside the cube can be seen but have total cover.

A creature within 5 feet of the cube can take an action to pull a creature or object out of the cube. Doing so requires a successful DC 12 Strength check, and the creature making the attempt takes 2d6 acid damage.

The cube can hold only one Medium or up to four Small or smaller creatures inside it at a time.

You gain proficiency in stealth due to your transparent jelly

You gain a +2 in Constitution and a +1 in Dexterity stats. You also gain a -8 in intelligence stats.

Your acidic body is a natural weapon, which you can use to make unarmed strikes. If you hit with them, you deal acid damage equal to 1d6 + your Constitution modifier, instead of the bludgeoning damage normal for an unarmed strike.

Your speed for walking and climbing is 15 feet.

Your size is medium.

You do not age and can live for an unknown amount of time.

You do not need to breathe, drink, or sleep.You gain immunity to exhaustion and cannot be put to sleep by magical means.

You can create a pseudopod to do an unarmed attack, for spells require Somatic components, or for wielding class related implements, these Pseudopods can in no way support the weight of heavy weapons.

You can speak languages by causing vibration through your body, but you do not innately know any languages.

Gelatinous cubes do not generally lean to any alignment.

A gelatinous cube can move through surfaces with cracks in them at big as 1/4 of an inch as a reaction or free action without squeezing.