Secret Units in Brainrot Tower Defense
Banner Secrets, Combination drops, and why a 5-star Rainbow copy is a different unit.
Secrets are the lottery layer of Brainrot Tower Defense. They are not required to play the released Roblox game, they are the copies that make Hard and Endless look unfair. This page covers the three names that actually change boards: Graipus Medussi, Elefanti Strawberry, and Secret Combination, plus how banners, grinds, and 5-star or Rainbow versions work. Shock Wave Studio updates weekly. Invite friends into online co-op (20 players per server) if you want extra eyes on a boosted banner, not because Secrets only drop in groups.
Treat a Secret as a job, not a sticker. Graipus is Full AoE. Elefanti is Circle. Secret Combination is the craft-side Secret, not a second Graipus. If a clip shows a unit wiping a map, check whether it is a 5-star Rainbow or a naked 1-star. The portrait is the same; the kit is not. Rankings that put these three in S live on best units ranked. This page is how you obtain them without lighting gems on a closed banner.
Graipus, Elefanti, and Secret Combination
Graipus Medussi is a banner Secret and the best Full AoE in the current role meta. Community dumps list a high base (around 4400 damage, SPA 4, range 24, Full pattern) with a brutal 0.01% style summon rate. One copy carries Story through Endless if it is upgraded and seated where the whole path is visible. Rainbow crits are why people chase stars after the first drop. You do not craft Graipus. You wait on the Secret banner, dump gems during a boost, and stop the moment you have a placeable copy. Extra copies become stars, not a second board of unupgraded portraits.
Elefanti Strawberry is the other practical Secret-tier carry, and it is kinder. You can craft it through combinations or hit a 0.5% drop. Circle coverage, huge range, and a friendly SPA make it the choke unit when Graipus never shows. It is S because the job is complete, not because the name is louder than Saturno. Secret Combination is the Combination-machine Secret. Build it when the recipe is legal and you already print cash. It is not a farm unit; farm is Los Tralalero Dicen Tralala. Secret Combination is the craft you do after farm and Major Combination, when you want a Secret-shaped kit without winning the 0.01% roll.
Banners, grind, and 5-star Rainbow copies
Banner grind is a gem budget, not a vibe. Read summoning and gem spending before you empty working codes into a rate-up that already ended. Boosted Secret banners are the correct dump. Off-banner Secret pulls are how accounts go broke. If the live banner is a Mythic you already own, park gems. Weekly boosts are logged on weekly patches. If Discord says a Secret is “free this weekend,” confirm on the official Roblox page or Discord before you plan a 5-star.
Stars and Rainbows are the second grind. A 1-star Graipus is already S. A 5-star Rainbow Graipus is the clip title people hunt: more crits, more wipe, more reason to keep dupes instead of trading them. Do not starve farm and Saturno to force 5-star on day two. The first Secret copy should go on the best team comps board next to Los Tralalero and Major Combination. Dupes after that become stars. Trading extras belongs on plaza booths with in-game value only. Real-money Secret trades break Roblox Terms of Use and will not be explained as a shortcut here.
Event Secrets and Secret-shaped guests (Lucky Block, Coffin Brainrots, seasonal Combinations) can appear in S while the shop is open. Farm the window, then check limited events when it closes. They do not replace Graipus as the default Full AoE answer unless a later patch says so. If the Secret inventory is event portraits and zero Graipus or Elefanti, you collected, you did not finish a carry.
A sane Secret plan is three sentences. Keep farm and slow online so any drop can be placed. Spend gems only on boosted Secret banners or the Elefanti craft path. Star the copy that already has a seat, not a museum piece. If a 5-star clip made you open this page, watch the obtain method, then go back to Mythic units for the Saturno you can farm this week while the banner stays cold.
Frequently Asked Questions
Quick answers to the most common questions.
What is the best Secret unit?
Graipus Medussi for Full AoE across every difficulty. Elefanti Strawberry if you need Circle and can craft or hit the 0.5% drop. Secret Combination is the craft-side Secret, not a Graipus clone.
Can I play without a Secret?
Yes. Saturno Saturnita plus farm and Major Combination clears the content that funds the next banner. Secrets speed the account; they are not a story gate.
How do 5-star and Rainbow Secrets work?
Dupes raise stars. Rainbow on Graipus adds the crits that show up in wipe clips. A 1-star Secret is still the role upgrade; 5-star is the luxury layer after the copy is placed.
Should I trade for Graipus?
Only through in-game plaza booths with in-game value. Never cash-trade Secrets. That violates Roblox Terms of Use. See farm units for plaza etiquette.
When is the best time to pull Secrets?
During a boosted Secret banner logged on weekly patches. Off-banner 0.01% pulls are how gem budgets die.
Is Elefanti really obtainable without the banner?
Yes. Combination craft or a 0.5% drop. That is why it is the practical Circle Secret when Graipus refuses to appear.