That is such a sick Mark playthrough. Nice to see someone use all of his moves so creatively.
The EX bar not building up is only in this specific dev build (0.1.4.4) of the game due to systems being reworked. The Angel Sponsor is the only one with abilities attached to it in this build. Would love to see a playthrough with EX moves :)
Currently working on implementing the new Guardian/Upgrade/Unlock/Save system which will have all those bugs fixed.