So for whatever reason, if you time Elly's phases out, her health drops to a lower amount than what it would be if the phase was cleared normally.
In addition to that, making that happen several times seems to make the last phase not trigger at all and instead triggers a self-destruct. Possibly because when the fourth phase times out, it does too much damage so Elly runs out of health. The strange thing however is that despite her self-destructing, you still get a bullet cancel bonus and the clear bonus doesn't void.
I don't know if timing out her phases while still having done some additional damage effects the health bar differently, or if there is a phase transition if you time out the first 3 phases but then shoot down the fourth. Either way it's clear Elly's phase transitions were not handled as intended
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