Downwell

The Boss is the final challenge of the well. It's a monstrous creature that dwells deep inside the earth, and is not happy to be disturbed.

The battle takes place in a 4-stage showdown, without any interruption. Each of the 4 stages is sequentially based on all previous areas (which means Stage 2 has spike traps, Stage 3 will be underwater and Stage 4 will have no platforms on which to land).

As the battle begins, the Boss will shoot a triple blast which can't be shot and must be avoided. Its weak point is the eye located inside its mouth and will be exposed every time the Boss shoots its blast. It will shoot four blasts before moving to the next stage, at which point the spiked ceiling will also start coming down. At the same time, it also releases a batch of darker enemies based on the stage. The first three stages also have a weapon module, which can be used to refill your hit points or enlarge your clip.

Last but not the least, be aware of the "teeth" coming from the ceiling. They can't be destroyed.

The strategy is clear: avoid being hit. Stay at the center as long as you can, while avoiding hazards and the chaos rising around you. The smaller enemies are your top priority. Kill them all and proceed to shoot the mouth. Sometimes you will notice they will get stuck below ledges, so pay close attention to them. When you see the Boss's mouth shining, be ware of the triple blast, avoiding it. Prefer automatic weapons over single-shot ones because you can tell easier if your clip is almost void, thus planing your recharge faster.

Of all weapons, the best ones are Shotgun, Noppy (both coupled with Laser Sight upgrade) or Laser, while Triple is definitely the worst (even though it has a wider radius, its ammo consumption and weaker power makes it the least favorable choice). Try having the Gem Attractor, Gem Powered and Gem Sick to have the best firepower, and Candle and Timevoid for longer periods of invincibility.

The trophy will pop as soon as you kill The Boss.