Additionally, I would like to point out that he stayed inside the chamber and kept a watch over Sonic the whole time, then worriedly supported the drained hedgehog when they trudged out
During episode 5 of Sonic Prime, you can see Mangey get scared of the presence of Thorn's bird. He shuffles around in fear around the other's but goes right to Sonic, gets behind him, and even holds his hand while doing so.
This is so stinking cute, and I'm glad this little detail now exists.