Please try this game! It has 2500+ blocks, though I switched to JavaScript close to the end when it lagged too much.
How to play:
Not in battle:
Move the cursor around, press A to interact.
You can view your status and assign points to become more powerful.
You can look at your spells, (you only start with one) and equip different kinds, as well as see the abilities of the spell.
You can go to forge to create spells, though it requires elixirs. You can buy elixirs for 2 gems each, which you get from winning battles.
Just because you use an elixir, does not mean you will succeed in creating a spell. Elixirs start with a 0% chance to succeed, but an Undertale attack bar will pop up, and a slider will move from one side of the screen to the other very fast, five times. You must press A when it is close to the center, which will reward success rates based on the accuracy of your reaction.
The more elixirs you use, the easier the Undertale attack bar is.
During a battle:
You are the blue player. Use up and down to move, left and right to emote. Press A and B to shoot spells. Don’t get hit, hit them.
P.S: There are no actual multiplayer capabilities. I just thought it would be funny to copy many mobile games like Angry Birds 2 with false and mostly easy fake multiplayer.