The Binding of Isaac: Rebirth achievements

The Binding of Isaac: Rebirth

4.6 from 661 votes

There are 65 The Binding of Isaac: Rebirth achievements (58 without DLC) worth 2,447 (1,155)

11,549 tracked gamers have this game, 460 have completed it (3.98%)

Achievement Details

Secret Achievement in The Binding of Isaac: Rebirth

Secret Achievement26 (15)

Continue playing to unlock this achievement. (Secret)

  • Unlocked by 3,860 tracked gamers (33% - TA Ratio = 1.73) 11,621  

Achievement Guide for Secret Achievement

306,860 (160,460)
Achievement won on 16 Aug 16
TA Score for this game: 1,244
Posted on 16 August 16 at 13:49
This solution has 1 positive vote and 0 negative votes. Please log in to vote.
To face Isaac (Boss) you need to either kill the boss "It Lives", or enter an angel room after killing Mom's heart. He will appear after beating the Cathedral level.

This boss is actually pretty easy, but it's important to know how Isaac attacks and how to minimize damage taken. There are three phases to his attacks.

Phase 1 - Isaac will fire rapid tears at you. These can easily be avoided if stood in the right place. They will fire in rows with spaces between each row.

Phase 2 - Same as 1, but Isaac spawns minions which fire blood tears in triplets. Also avoid the light beams.

Phase 3 - The boss will now move much faster and begin to teleport. When he does teleport, he will release multiple beams of light covering almost the entire floor. You can avoid this by standing right in a corner.
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