so finally beat real mirage mode, it's actually impossible unless you get the item that gives you more max hp per kill, unless you are patient enough to dodge his stun spamming, after that there's not much else to do though which sucks, would be cool if they let you fight in every single area, but your probably run out of items to collect, & the final boss would be even harder, but it's at least better than nothing else to do, btw the only way I see beating real mirage mode is unlocking the 4 item limit, because even if you only had, +1hp per kill, some sort of item that'll heal you as you hit enemies, whether it be heal on hit, or crit, (I got lucky & had both), turning your armor into HP for some Regen, & probably something for damage or crit, you'll need to get really lucky with what the vendor has (you can refresh for 10 but later on stuff can get expensive), I don't remember what I had on my weapon but I probably wasn't going to live through the final form unless I had more than 4 items