The RY3NO is a weapon manufactured by Gadgetron in Up Your Arsenal. It launches eight separate explosive missiles at targets, which upgrade to energy blasts that disintegrate targets instead. It is the third iteration of the RYNO series, and the first that can be upgraded.
The RY3NO can only be purchased in challenge mode, for 3,000,000 bolts, and can be upgraded to the RYNOCIRATOR with use. The RYNOCIRATOR functions fundamentally differently, instead combining all its blasts into one which destroys all non-boss enemies on screen. It cannot be upgraded to a mega weapon.
The RY3NO is a brown weapon with an large and thick barrel. It contains six protruding spikes surrounding its main nozzle, and has a left-hand grip. The RYNOCIRATOR appears very similar, though both the barrel, stock, and the spikes have gained an extra layer of armor, and the nozzle is smaller as well.
The RY3NO launches eight auto-targeting missiles which can each destroy almost any enemy. At V2, this changes to twelve energy blasts which disintegrate enemies instead, which in turn changes to fourteen at V3, and sixteen at V4. As the RYNOCIRATOR, it fundamentally changes, and instead combines the energy blasts together after a set distance, disintegrating all enemies on-screen in a flash of white. Any enemy off-screen, regardless of proximity to the player, will not take damage from the flash, but may still take damage from the energy blasts themselves if they come into direct contact.
There is no advanced strategy for this weapon, as it is capable of destroying almost all visible enemies with one shot. While its ammo is expensive, the player is likely to be very rich by this point, meaning there is little reason to conserve ammo. However, it is almost completely ineffective against bosses at a distance, particularly against Dr. Nefarious, as it is more focused towards targeting multiple threats than a single one. It is still possible to use this weapon effectively against bosses at close range provided the energy blasts collide with a target before the screen fades to white.
By the time the weapon is unlocked and upgraded, there is little in the game that will pose a threat to the player anyway, and so they may choose to avoid purchasing it until obtaining the Omega Arsenal trophy.