Proceed through Bean Valley to the five pipe room, do not collect any chests on the way.
Jump on the save block such that Mario lands on the block at the highest point of its oscillation animation. Save and reset.
As soon as you select your file, start holding up and right so you walk into Megasmilax's room right away.
During the room transition, start holding down and left to walk back into the 5-pipe room right away.
Shy Away should fly directly to the rightmost pipe. Get into an encounter with the piranha on that pipe.
If the formation has 5 enemies, Use the See Ya さよならはとつぜんに to escape, and then stand in place to reload the fight. Repeat this until the battle formation is just two Chewys. Then use Lamb's Lure ひつじのゆうわく to remove the Chewys.
Go down the pipe and get the Red Essence chest.
(If Mushroom Kingdom, enter from the right on the world map.)
Sell: All Pick Me Ups ふっかつドリンク All Energizers ツヨクナール All Sleepy Bombs ねむりだま All but your 4 strongest bombs (Rock Candy こんぺいとう / Ice Bomb こおりだま) Lamb's Lure ひつじのゆうわく Equip: Mario wpn: Lazy Shell ひまんパタこうら acc: → Bowser Bowser acc: Safety Ring セーフティーリング Peach arm: Royal Dress プリンセスドレス acc: Jinx Belt ジャッキーベルト
Current Inventory 0 to 4 Red Essences レッドヨッシーエキス up to 3 Ice Bombs こおりだま 1 See Ya さよならはとつぜんに 1 to 4 Rock Candies こんぺいとう
Verify that your equipment looks like this:
Mario: Lazy Shell ひまんパタこうら / Work Pants ばっちいパンツ / Troopa Pin パタパタくんしょう Bowser: None / Lazy Shell ひまんパタこうら / Safety Ring セーフティーリング Peach: Frying Pan フライパン / Royal Dress プリンセスドレス / Jinx Belt ジャッキーベルト
Fetch cookies from the pink Yoshi (1st option), and feed them to the Fat Yoshi in these quantities in this order. Stop when you have 5 Red Essences:
(20 if you freebied the Red Essence on Bundt, skip otherwise), 20, 1, 20, 20, 10, 20, 20
Stash any remaining Cookies with the pink Yoshi near the Pipe Vault entrance (1st option).