Short answers from the Roblox page and from cards we could read on screen.
What is Build a Dino Defense?
A Roblox tower defense game by Big Chomp Games. You place defenses, fight waves, earn cash, and keep the egg alive. The Dino Index lists 33 dinos plus later boss cards.
Are there Build a Dino Defense codes?
The official game description does not list a code, and the HUD we recorded has Shop, Fight, Base, Abilities, and Dinos, not a Codes button. The codes page stays empty until a real code shows up.
What is the first boss?
Titanhorn. The index card says BOSS - WAVE 10, with HP 6K, DMG 90, SPD 3.5, and a $900 price. The Roblox badge Trike Titan is a separate goal: topple the Trike Titan.
What do the four pills on a dino card mean?
Left to right they are HP on red, DMG on orange, SPD on blue, and the dollar price on green. The header says DINO, MINI BOSS, or BOSS, plus the wave.
Does the Dino Shop keep the same items?
No. The shop header has a timer, New items in, and a Restock button. Prices on the shop page are from one Defense restock, not a permanent catalog.