The special system in TH16 東方天空璋

[Enko]

Caution:this info is from the in-game manual of Trail Ver which is translated from THBWiki's Chinese Translation.
So maybe ZUN changes some little thing in public version,who knows?

This time the special system in th16 is "Seasonal Explosion (季節解放)" ,which you can "Release" by pressing the RELEASE key (C key on keyboard).

About the season
First you should know that here are "Main Season" and "Sub Season"

Main Season depends on the charactor you choose.In Trail ver they are:

Reimu (霊夢) ---  春 (Spring)
Cirno (チルノ) --- 夏 (Summer)
Aya (文) -- 秋 (Autumn,which is Fall in the game)
Marisa (魔理沙) --- 冬 (Winter)

And then you can choose sub season manually.
Sub season will shown as the sub weapon behind the charactor,you can think that as "extra power".
Different season has different shoot option,so you may choose it wisely.

Season item
In gaming there is "Season item",collect it and strength your sub season.

(Sub season --- Season item shown in gaming）
Spring --- Sakura
Summer --- Leaf
Fall -- Res Leaf
Winter --- Snow

Collect the Season item will fill the Sub Season Gauge in left-lower corner.
When the bar full the level plus 1,your sub weapon plus 1,and the "Releasable" Mark shown.
The max level is 6.

So how to get more Season item?
「Shoot out the enemies」
「Graze」
「Clean the bullect by spell card and Seasonal Explosion」

Remember,season item can be collet by go on to Item Border Line.

Seasonal Explosion ? 季節解放
No! There's not ANY Kemono Friends here!!!!!!! (In fact ZUN don't know any thing about Japari Park.)

If the Sub Season level is 1+,the "Releasable" mark will show up.
Press the RELEASE key (C key on keyboard) will release the "Seasonal Explosion".
It will let the level down to 0 (Summer Except).

It will clean the bullet (You can use as the substitute of spell card,and you can still get the Spell Card Bonus).
Bullets will change to green point item to increase the blue points Value.
And, it also produce season items.

So how it valueable?
Remember,this time the ONLY way to get the life is:get the destination score (shown under the life).
And the green point item won't shown unless you use the Explosion.