[solved] 'Riding' a ball

[Magnamancy]

Okay,
after stripping away most pointless detail, here's my idea:

The character generates a barrier around himself (Object 1 = O1) with a set hp.
The character then generates a ball (O2) that has a chase function (follows the enemy).

Now here's my problem:
I know you can have a ball 'attached' to a character,
but can you attach a character to a ball (have the character align itself to the ball's values,
not the other way around)?
(don't worry about messyness, the char's sprites will be blank)

Assuming this can work, the char should be able to interact with the target ball, O2.

When O1 is broken, the idea is to have it use a stage-wide effect that will send O2 into
frames that will make it dissapear.(char returns)
(O1 will have a timer ball for it too)

What're people's thoughts?
Is any/all/none of this possible?
(sorry if this has been brought up before, but I don't think it has been, or on the mainsite)