Vampire Survivors

I did this quite easily with Mortaccio☠️. You're probably best off getting Garlic ASAP, because you can then run into the many bats🦇 to gain XP. Then go for Attractorb & Santa Water, which are good and combine to evolve the Santa Water into La Borra. Buy Reroll in the Power Up menu, then you have a better chance of choosing those items. Picking upgrades for '(All)' is wise (and Spinach), as is 'augmenting' area ('Candlelabrador'), and increasing the number of projectiles, but you should upgrade Garlic whenever it's offered because it needs to save you from being swarmed by skeletons on 11 minutes, and ghosts on 13. Unlock any treasure chests as soon as you see them - V on the map.
Once you have La Borra you shouldn't have any problems killing the Blue Venus plant after 25 minutes. I also recommend the Runetracer, and possibly evolving it with Armour to make it explosive.
Head NE after killing Venus to unlock Pugnala by touching the coffin (turn on Milky Way Map guide icons) for another achi (you will die if you try too soon!):
Alternatively, head NW to collect the skull if you need 'Lama' (NB: The skull actually just needs to be active after 20 minutes):

I completed the Mad Forest at Level 120, with 27k kills, and 7100 gold, at which point the Grim Reaper kills you on 30 minutes. If you need to Power Up your basics first you should replay the Inlaid Library for the gold coins, as it's the easiest to complete early, or at least earn lots of gold - the evolved Pentagram (requires Crown) is excellent for this.

What is the best way to do this?