1. Tap PLAY on the splash.
2. Sign up with an email + password, or skip and play anonymously (scores don't sync across devices).
3. Pick a nickname, age, country, avatar, and a faction (McNumber / Ronumbo / Captain / Darty).

• Solo — 60-second round. Pick op (+ − × ÷ ⚡ ★), difficulty (2 / 3 / 4 options), level (1 → 6), and deck flip (Equation or Battle).
• Tank V Tank — two players on one device, top half rotated. First correct answer scores 1 point. Race to 9 / 15 / 30. Also playable remote (Quick Match / Invite / Join).
• Team Battle — 2v2 fastest-finger-first.
• Training Grounds — pick a card target (10 → 1800). No timer; best time wins.
• Dynamic / Champion — 3-operand chains. Score = highest cell hit on the 1-180 board.

Three challenges per day:

Clear all three for a daily streak. 3 failed rounds locks the slot until tomorrow. Mobile users get a 16:00 UTC reminder push.

• FIND A PLAYER → search → FOLLOW to send a buddy request.
• Mutual follows become friends.
• PROFILE → FEED shows what friends are up to: joins, wins, big scores, sticker posts.
• Tap a sticker (🎯 🔥 💪 🤝 🔁 👑 🏆 🚀) to broadcast to your friends.

1. MENU → SCHOOL → I HAVE A CLASS CODE.
2. Enter the 6-character code from your teacher.
3. Tap MY CLASS on the SCHOOL dashboard.
4. ASSIGNMENTS tab shows what your teacher wants you to do:
   • ACKNOWLEDGE — "I've seen it"
   • MARK DONE — "I've actually done it"
   • JOIN TOURNAMENT — for tournament assignments, drops you in the lobby

PROFILE → ME shows your XP gauge, best per (op × mode), badge grid, recent matches, and weak spots.