Part 21

Explore the 'Teleport!' and 'Yum Heart' active items, plus the 'The Battery' passive item in The Binding of Isaac: Rebirth. Learn their effects and strategies.

Alright, let's dive into Part 21 of our Binding of Isaac: Rebirth guide. We've got a couple of active items and one passive item to cover here that can really change how you approach rooms and manage your resources.

First up, we have the Teleport! active item. This little guy is found at Row 5, Column 9 and has a recharge of 2 rooms. When you use it, it'll zap you to a completely random room. This is super interesting because it can send you to all sorts of places: Secret Rooms, Boss Rooms, Devil Rooms, and even the elusive I AM ERROR Room. It's a great tool if you're the type of player who likes to conserve health by avoiding unnecessary fights or exploring just enough to get by. If you enter a room and realize it's not worth your time, just teleport out! Just keep in mind that it *can* teleport you straight into a boss room, so use it wisely.

Next, we've got the Yum Heart. This one's a classic, found at Row 6, Column 1, and it recharges in 4 rooms. Its effect is simple but incredibly useful: it heals you for one heart. This is probably one of my personal favorite items. We all make small mistakes and take a bit of damage now and then, and Yum Heart is the perfect buffer to keep you healthy, especially during those tough levels where hearts are scarce. It's actually Magdalene's starting item, and honestly, it's a big reason why I sometimes favor playing as her, alongside her starting with four hearts. While it recharges in 4 rooms, which feels fair, you might find yourself needing it more often if you're taking a lot of unnecessary damage. It's a win-win: useful for keeping you alive and a great safety net.

Now, let's switch gears to passive items. These take effect immediately when you find them. We're looking at 'general passive items' here – the ones that don't fit neatly into Stat Padding, Weapon, or Familiar categories but are still passive.

The first passive item we're discussing is The Battery. You'll find this at Row 8, Column 1, and its message is 'Items Recharge'. Here's how it works: every 20 seconds you're in combat, you get one bar added to your active item's recharge, up to a maximum of 3 bars per room. The real kicker? If those 3 bars fully recharge an item and you use it, the counter resets, and you can get another 3 bars in that same room. This means you can potentially use a Spacebar item *every single combat room* if you play it right! It's fantastic for players who are patient and like to exploit mechanics. Imagine combining this with a 6-room recharge item; you could use it once per combat room. Now, this would mean spending a full two minutes per combat room, which can get frustrating if you're trying to speedrun. However, if you have the patience, this item is amazing. You could get a pill every room with Mom's Bottle of Pills, a Tarot Card every room with the Deck of Cards, or even invulnerability every room with My Little Unicorn (though that's a bit counter-productive, as you'd have to dodge for two minutes just to use it!). It opens up a ton of novel combinations.

Finally, we have Bobby-Bomb, found at Row 12, Column 4, with the message 'Homing Bombs'. This item gives your bombs a homing effect, meaning they'll track towards enemies. This can be incredibly useful for clearing out rooms, especially when enemies are spread out or hard to hit directly. It adds a nice layer of utility to your bombs, making them more reliable for dealing damage.