Answer:Since Elsa created Marshmallow, it's very likely since after creating him, he threw Anna and Kristoff out of the ice castle.
Elsa is extremely emotional at this point. While she can make sentient things with her powers, it doesn't seem like she is in direct control of them. Most likely she gave Marshmallow the idea to keep everyone away from her castle and that's it. Elsa would never purposely hurt Anna, therefore Marshmallow is acting on his own, albeit following the last orders Elsa gave. So yes, he obeys her but is not under her direct control.
Answer: Since Elsa created Marshmallow, it's very likely since after creating him, he threw Anna and Kristoff out of the ice castle.
Elsa is extremely emotional at this point. While she can make sentient things with her powers, it doesn't seem like she is in direct control of them. Most likely she gave Marshmallow the idea to keep everyone away from her castle and that's it. Elsa would never purposely hurt Anna, therefore Marshmallow is acting on his own, albeit following the last orders Elsa gave. So yes, he obeys her but is not under her direct control.
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