I'm bound to miss some and you can probably argue every point, but:
Tali's data: solved the problem of proving Saren was a traitor.
Mu Relay info: solved the problem of knowing where to go.
Anti-Thorian Grenades: solved the problem of clearing Zhu's Hope non-lethally.
The Cipher: solved the problem of interpreting the beacon's message.
Mining laser: solved the problem of getting through the impenetrable forcefield Liara activated.
The Alliance fleet: solved the problem of losing the Battle for the Citadel.
Saren's death: solved the invincible Reaper problem.
Project Lazarus: solved the problem of Shepard's death/grave debilitation.
Veetor's tapes: solved the problem of identifying the enemy.
Mordin's cure: solved the problem of the alien-killing plague.
Mordin's bugspray: solved the problem of the swarms.
Quarian explosives: solved the problem of the collapsed stone pillar.
The Reaper's beam hitting a building: solved the problem of a locked door (entirely gameplay and not narrative but it still counts)
The Crucible: solved the problem of inevitable defeat.
The Shroud: solved the problem of dispersing the Genophage cure.
Kalros: solved the problem of the Reaper standing in front of the Shroud.
The Citadel beam: solved the problem of accessing the Citadel.
The Cain destroying a Reaper: solved the problem of the Hades Cannon.
Anderson's shuttle: solved the problem of Shepard being stranded away from Hammer.
Brutes breaking through a wall: solved the problem of a dead-end alley.
Thanix missiles: solved the problem of the beam Reaper.
The elevator for Shepard only: solved the problem of allowing the Crucible to fire.
As I said, I've likely missed a lot but I was sticking to the main story missions (and recruitment missions).
EDIT to add: Deus Ex Machina's are not always bad. A fair few of these do work for one reason or another (drama, pacing, etc.). And there's plenty of bad writing without DEMs.
Modifié par Indy_S, 27 avril 2013 - 10:01 .