I tried a bit of Flashback 2 last night and... woof. Controls are not remappable and don't make sense (reloading the gun doesn't work unless you're USING it), there is no jump mechanic (you press A to interact with ledges), it runs terribly on my PC (where Assassin's Creed Mirage runs okay), some of the avatars look at least partially AI generated, animations are bugged, on Deck it just refuses to run decently.
Microids is on a streak of releasing games that are just not ready, huh?
