This page contains Cheats for Sentinel organized by sections for Atari 2600. Sentinel is a Action General game, made by Imagineering Inc and published by Atari. If you can't find a hint or secret in our list, then please check this page periodically for the latest updates.
During any of the levels listed below, fire a charge shot after you take at least 1 point of damage. While the charge shot is on-screen, press Start and press the Up directional button twice, then press the Right directional button once. After that, complete the level with the proper requirements listed below, and a menu will come up with the ships...From: antlion
In level 2, after the second heavy cruiser appears, fly to the left, and hold the left directional button, even though you can't continue to go left. The screen will flash and take you to a new area, where a large ship will be. This is the Omega Fortress, and its primary attacks are guns, grenade shots, and a nova cannon. Once you defeat it, a spec...From: Ubludkadochka
In Level 6, after the fourth wave of Patrol Scouts flies by, wait for a Heavy Cruiser to appear. Fire a Charge Shot at it, and wait for it to shoot back. Fire 2 normal shots at it, then another Charge Shot. If you did this correctly, the Heavy Cruiser will blow up, and a feather will fly out of it. Shoot the feather until it explodes, and press Sta...From: fifachamp
When you are fighting the Omega Fortress, fire a grenade at its Omega symbol or it's windshield. It will stick for some reason, and drain energy until either the Fortress is destroyed or you shoot the grenade, which would explode and do the same amount of damage it would do if it exploded on contact....From: marquisreyn1
After you defeat the Omega Fortress, fire at the explosion of it before it clears away. The Omega Power will drop down in the form of an Omega symbol, and when you get it, it gives you a PERMANENT 30% attack boost!...From: marquise58
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