Here is a table, come and play billiards.

your goal is to knock in all these crop balls into the hole.

But wait a minute, there seems to be something unusual

Do not scroll down, beware of spoilers. CLICK HERE

I uploaded the HTML version, but it is not in HD. I recommend downloading it and playing it in full screen

Tips

* Most of the balls have 4 points, except for the initial balls. * * Gold transparent balls have 8 points. *

The Death Swamp spell was indeed very difficult as it was supposed to be the last spell, but there was some time left at the end so I did Sans' spell (which was even harder)

It's a shame that you won't see Sans if you don't pass the Death Swamp so I'll explain the idea of the Death Swamp here and hope it helps you.

The Death Swamp can be broken down into five parts. The first part is a lot of yellow explosions that are used to drive the cue ball to the left side of the table.

The second part is the swamp ball and more explosions. There are two safe spots between the swamp balls and the area of explosions.

Originally the second safe spot was covered by the explosions in the first part. Avoiding the cue ball getting too close to the right side before stage three. However, to reduced difficultys, stage one removes some of the explosions, allowing you to stay in the second safe spot.

The explosions in stage three start from left to right and you need to reach the right side before they catch you. There is also a bomb ball on the far right side of the table, whose purpose is to help you clear the dense swamp balls. If you stay at the second safe spot of stage 2, you can easily reach the right side after the bomb ball explodes.

Stage 4 is a mirror of stage 3. It is also the most difficult part of the Death Swamp spell. The third GIF shows the fourth stage of the Death Swamp. The original stage 4 was horribly difficult, but I have reduced the explosions' speed (originally it was the same as stage 3). It is extremely difficult to reach the left side of the table directly, as the swamp balls on the left are very dense. So you still need to clear them with the bomb balls. Here comes the fourth stage key. There are three bomb balls on the left side, however they are wiped out by a yellow explosion a split second before they explode. So what you have to do is push the three bomb balls away from the yellow explosion area with the right click and make sure they destroy as many swamp balls as possible. Just as GIF3 shows.

The design of stage 5 is very obvious, I won't reveal it to you here, you can solve it.

You don't have to go through Sans Spell, which has two chapters. The second chapter named COMBO is very, very difficult. I thought it was just a little bit hard when I tested it, however I didn't take into account that I am an experienced Touhou Project player.After watching jitspoe being abused by Sans for an hour on stream I realised that the difficulty did get a bit out of hand.

These Spells are definitely passable to clear, I've tested them many times and if you want to challenge yourself you can try to get through them. If you don't have the patience, I'll do a clearance video afterwards.

Although the difficulty has been reduced many times during the test, I still made a greater difficulty adjustment

1, 15% reduction in the collision box of explosion.

2, Gaster blaster judgment area narrowed by 20%

(they originaly equal to the visual range)

3, the death swamp stage 4 explosion delay of 0.5 seconds

(This is a big delay)