The wiki has a list of which S1 cubimals are releasable, but not yet for S2. This is what I know so far; could someone fill in the ones I'm not sure about?
Butler: ???
**Crafty Bot: Releasable**
**Emo Bear: Releasable**
**Firebog Street Spirit: Releasable**
**Fox: Releasable**
**Fox Ranger: Releasable**
Gardening Goods Vendor: ???
**Gnome: Releasable**
**Groddle Street Spirit: Releasable**
--Hell Bartender: Not Releasable--
**Ilmenskie Jones: Releasable**
Maintenance Bot: ???
--Meal Vendor: Not Releasable--
**Phantom: Releasable**
Scion of Purple: ???
--Señor Funpickle: Not Releasable--
**Sloth: Releasable**
--Tool Vendor: Not Releasable--
Trisor: ???
**Uralia Street Spirit: Releasable**