DEMO has updated to 0.8.10-demo-855
Highlights are:

Features

• Change player minimap icon to arrow.
• Change enemy health bar from green to red.
• Player triggering teleport trap now has delay to show what's happen instead of teleport instantly.
• Prevents pure shop sell because player misundertand that shop will payout money.
• Shows red screen vignette if low hp (<25%)
• Clamp maximum dealth penalty (max hp reduction) to only 50%
• Lock modification of skill shortcut to prevent confusion, so player can only modify just shortcut 1 2 3 4.

Fixes

• Fix tutorial not clearing items and refresh player stat properly upon restart.
• Prevents any action if player has exited the floor.
• Fix cannot cancel cool speech in early stage.
• Fix various non-default key binding that have conflicts in some way.
• Fix character pack 1M 1F material error.

Database & Tuning

• Big tuning to difficulty, making overall easier.
• Nerf boss HP from 7500+60% to 6000+50%.
• Reduce obstacles and enemy spawn per room.
• Buff cool sweep and cool dash start time.
• Buff player food recovery a bit.
• Place 2 free food barrels in boss room.
• More time per floor (+30%) to help casual players.
• Mage homing ball has lifetime reduced from 30 > 10 sec.
• Buff 3rd sword combo size +0.3m.
• Reduce Skeleton archer's aim prediction.

Thank you for everyone participating in demo version,
and everyone reporting the problem you found!

Especially BPK, Night Sky, Problem_Free-World, Joke Gamer discord group for feedback!